The $30 billion batch of pre-Christmas cuts to Pentagon weapon systems could be a harbinger of even deeper cuts to big-ticket programs in the coming months, as the Defense Department prepares to launch a sweeping strategy review that is expected to further change what the military acquires. The congressionally mandated Quadrennial Defense Review of strategy, budget, force structure and modernization plans is expected to scrutinize the need for weapons programs designed to fight conventional enemies. A goal is to redirect...